Ball marker device



FIG. 1 is a top-front-left perspective view of a ball marker device showing our new design;

FIG. 2 is a bottom-rear-right perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a right-side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a top-front-left exploded perspective view thereof, wherein a deployable indicator is shown separated from a base component; and,

FIG. 10 is a bottom-rear-right exploded perspective view thereof, wherein the deployable indicator is shown separated from the base component.

The broken line showing a magnetic fastener in FIG. 10 is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a ball marker device, as shown and described. 